According to this article and the surveyed that been discussed, Sony has a headstart in Japan.
http://biz.gamedaily.com/features.asp?article_id=10049&filter=
Japanese are weird, look at the age group that are most interest in the Nintendo Revolution.
An overwhelming 60 percent of respondents said that they would be most interested in the PlayStation 3. By comparison, only 8 percent of survey participants answered that they are interested in the Nintendo Revolution and an even smaller 2 percent said they are looking forward to Xbox 360. When breaking it down by age group, the survey found that people in their 20s were more excited by the PS3, while people in their 30s were more interested in the Revolution.
http://biz.gamedaily.com/features.asp?article_id=10049&filter=
Japanese are weird, look at the age group that are most interest in the Nintendo Revolution.